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ITS1A Clock

This is a clock for the vintage ITS1A thyratron tubes. I didn’t think that my first six tube clock would be an ITS1A clock, but after I got some of the tubes and spent a little time getting them to light up (and then be able to control what was displayed), it seemed a small step to building an actual clock.


Guiding Principles

  • I wanted this to be all through-hole components so that I could sell spare boards as kits for others to build.
  • I wanted to re-use a lot of my existing clock code that runs on ESP8266 chips.



You can read more about the project on my blog

Here is a video of it in action:



Apr 17,2019
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